package chapter05.Example04;

public class Example04 {
    public static void main(String[] agrs) {
        String s = "itcast";
        System.out.println("将it替换cn.it的结果："+s.replace("it","cn.it"));
        String s1 = "  i t c a s t   ";
        System.out.println("去除字符串两段空格后的结果："+ s1.trim());
        System.out.println("去除字符串中所有空格后的结果："+s1.replace("",""));
    }
}